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Vaillant ecoTEC plus VU INT 306/5-5 25 kW

Photos - Boiler Vaillant ecoTEC plus VU INT 306/5-5 25 kW
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This gas boiler has a single-circuit design, and therefore it can only provide heating, but at the same time the efficiency of the model is at the level of 108% (this is also achieved through the use of the energy of condensation of water vapor). However, Vaillant ecoTEC plus VU INT 306/5-5 supports the possibility of connecting an indirect heating boiler. The total useful power is 25 kW, the modular burner allows you to adjust the power in the range of 20-100%. The system of automatic selection of the optimal gas/air mixing ratio to reduce gas consumption deserves special attention. Note also that the manufacturer provides a special summer mode of operation.
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Vaillant ecoTEC plus VU INT 306/5-5 25 kW
Energy source:gas
Mount:wall, single-circuit
Boiler power:25 kW, area ~ 200 m²
Combustion chamber:closed, flue 60/100 mm

This gas boiler has a single-circuit design, and therefore it can only provide heating, but at the same time the efficiency of the model is at the level of 108% (this is also achieved through the use of the energy of condensation of water vapor). However, Vaillant ecoTEC plus VU INT 306/5-5 supports the possibility of connecting an indirect heating boiler. The total useful power is 25 kW, the modular burner allows you to adjust the power in the range of 20-100%. The system of automatic selection of the optimal gas/air mixing ratio to reduce gas consumption deserves special attention. Note also that the manufacturer provides a special summer mode of operation.

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All specifications
Specifications ecoTEC plus VU INT 306/5-5
Main
Energy sourcegas
Installationwall
Typesingle-circuit (heating only)
Heating area200 m²
Condensing
Technical specs
Heat output25 kW
Min. heat output5.2 kW
Power supply230 V
Power consumption80 W
Coolant max. T85 °С
Heating circuit max. pressure3 bar
Consumer specs
"Summer" mode
Circulation pump
Control buseBus
Boiler specs
Efficiency108 %
Combustion chamberclosed (turbocharged)
Flue diameter60/100 mm
Expansion vessel capacity10 L
Heat exchangerstainless steel
Connections
Gas supply1/2"
Central heating flow3/4"
Central heating return3/4"
Safety
Safety systemsgas pressure drop
water overheating
flame loss
draft control
water circulation failure
frost protection
More specs
Dimensions (HxWxD)720x440x338 mm
Weight34.5 kg
Added to E-Catalogaugust 2014
FAQ: 10 frequently asked questions about heating boilersAnswers to common questions in the section "heating boilers"
Information in model description is for reference purposes.
Before buying always check characteristics and configuration of product with online store manager
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Additional features boiler Vaillant ecoTEC plus VU INT 306/5-5:
  • Possibility to connect an indirect heating boiler
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